COMET is an experiment at J-PARC, Japan, which will search for neutrinoless conversion of muons into electrons in the field of a nucleus $(\mu^{-} + N \to e^- + N)$; a lepton flavor violating process. The experimental sensitivity goal for this process is of order $10^{15}$ for Phase-I and $10^{17}$ for Phase-II experiment, which is a factor of 100 to 10,000 improvements correspondingly over existing limits. Recent progress in facility and detector development are presented, along with COMET Phase-I experimental schedule.